The people of the world stand under the principle of power. The whole social entity is governed by power, this being the highest value peoples aspire to and by which they counted, weighed, and judged. But, contrary to what is usually assumed, it is not external power which determines everything, but fundamentally internal power is the core of the power phenomenon. As this core gradually matures over time, it bursts open the shell of external p

Author(s): Friedrich von Wieser

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6.450 Principles of Digital Communications I (MIT) The course serves as an introduction to the theory and practice behind many of today's communications systems. 6.450 forms the first of a two-course sequence on digital communication. The second class, 6.451, is offered in the spring.
Topics covered include: digital communications at the block diagram level, data compression, Lempel-Ziv algorithm, scalar and vector quantization, sampling and aliasing, the Nyquist criterion, PAM and QAM modulation, signal constellations, finite-energy waveform spAuthor(s): Zheng, Lizhong,Gallager, Robert

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Aptamers are nucleic acid molecules that have been developed to mimic the selective and tight binding of other molecules such as antibodies. In order to identify an aptamer that is capable of binding to a target molecule, a process called Selex (systematic evolution of ligands by exponential enrichment) is utilised. The strategy relies upon a combination of a selective binding assay and amplification by PCR. A ‘library’ of short single-stranded DNA oligonucleotides is synthesised <

Japanese First-Grader Japan has one of the most successful school systems in the world. It is also one of the most demanding school systems. In this video from Wide Angle, Ken Higashiguchi, a first-grader in a Japanese school, started preschool when he was only one year old. In the video, Ken is experiencing his second day of first grade. He has no problem reading the words of the school song with all of the other children. Ken’s teachers and parents have high expectations for him to be independent and to work Author(s): No creator set

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The Samurai This video takes a look at the history of the samurai and a warrior tradition that dates back over 1,300 years called Yabusame, a ceremonial and sacred form of mounted archery. (9:52)Author(s): No creator set

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China wraps up annual parliament meeting China concludes its annual parliament session, the full meeting of the largely rubber-stamp People's Congress in Beijing. Rough Cut (no reporter narration).
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Reuters tells the world's stories like no one else. As the largest international multimedia news provider, Reuters provides coverage around the globe and across topics including business, financial, national, and international newAuthor(s): No creator set

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Mushroom Meatloaf with Mushroom Gravy Recipe at http://www.ciaprochef.com/mushrooms/recipe3.html
Meatloaf is the quintessential American comfort food, and Chef Bill Briwa gives this classic dish a healthy twist with mushrooms. He switches out half the ground meat with chopped mushrooms, which not only adds flavor, but can help the meatloaf from drying out.Author(s): No creator set

Finding information in health and lifestyle This free course, Finding information in health and lifestyle, will help you to identify and use information in health and lifestyle, whether for your work, study or personal purposes. Experiment with some of the key resources in this subject area, and learn about the skills which will enable you to plan searches for information, so you can find what you are looking for more easily. Discover the meaning of information quality, and learn how to evaluate the information you come across. You will aAuthor(s): Creator not set

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Much of the present-day debate about GM plants centres around the existing range of GM crops, most of which have been engineered for herbicide tolerance or insect resistance (covered in course S250_1 Gene manipulation in plants). One of the implications of this narrow commercial focus is that the benefit that such crops would bring, other than to those multinational companies that produce them, is by no means clear. Weighing up their value on some form of ethical scales might be unlike

8.871 Selected Topics in Theoretical Particle Physics: Branes and Gauge Theory Dynamics (MIT) This course is an introduction to branes in string theory and their world volume dynamics. Instead of looking at the theory from the point of view of the world-sheet observer, we will approach the problem from the point of view of an observer which lives on a brane. Instead of writing down conformal field theory on the world-sheet and studying the properties of these theories, we will look at various branes in string theory and ask how the physics on their world-volume looks like.Author(s): Hanany, Amihay

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If the eccentricity e of a hyperbola is equal to √2, then e2 = 2 and b = a. Then the asymptotes of the hyperbola have equations y = ±x, so they are at right angles. A hyperbola whose asymptotes are at right angles is called a rectangular hyperbola.